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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 420627Generated: October 26, 2026

2-Methyl-5-nitrophthalazin-1-one → 5-Amino-2-methylphthalazin-1-one

https://huagongshe.com/reaction/420627

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-Methyl-5-nitrophthalazin-1-oneHCID 17989125—
ReactantHCID 178418361HCID 178418361—
CatalystPalladiumHCID 23938—
SolventEthyl AcetateHCID 8857—
Product5-Amino-2-methylphthalazin-1-oneHCID 1798504594%

Reaction Steps

1.57 g of 2-methyl-5-nitro-phthalazin-1-one and 130 mg of palladium on activated carbon are suspended in 45 ml of ethyl acetate and hydrogenated with hydrogen under normal pressure. It is filtered through diatomaceous earth, and the solvent is removed in a vacuum. 1.26 g of 5-amino-2-methyl-phthalazin-1-one is obtained as a yellow solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08097627B2
Source datasetuspto-grants-2012_01
ORD IDord-9cd130f40a63452b89d514ecc6a81af4
Source noteuspto-grants-2012_01